plumiobus.c revision 1.9
1 /* $NetBSD: plumiobus.c,v 1.9 2003/07/15 02:29:30 lukem Exp $ */ 2 3 /*- 4 * Copyright (c) 1999, 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: plumiobus.c,v 1.9 2003/07/15 02:29:30 lukem Exp $"); 41 42 #define PLUMIOBUSDEBUG 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/device.h> 47 #include <sys/malloc.h> 48 49 #include <machine/bus.h> 50 #include <machine/intr.h> 51 52 #include <hpcmips/tx/tx39var.h> 53 #include <hpcmips/dev/plumvar.h> 54 #include <hpcmips/dev/plumicuvar.h> 55 #include <hpcmips/dev/plumpowervar.h> 56 #include <hpcmips/dev/plumiobusreg.h> 57 #include <hpcmips/dev/plumiobusvar.h> 58 59 #include "locators.h" 60 61 #ifdef PLUMIOBUSDEBUG 62 int plumiobus_debug = 0; 63 #define DPRINTF(arg) if (plumiobus_debug) printf arg; 64 #define DPRINTFN(n, arg) if (plumiobus_debug > (n)) printf arg; 65 #else 66 #define DPRINTF(arg) 67 #define DPRINTFN(n, arg) 68 #endif 69 70 int plumiobus_match(struct device *, struct cfdata *, void *); 71 void plumiobus_attach(struct device *, struct device *, void *); 72 int plumiobus_print(void *, const char *); 73 int plumiobus_search(struct device *, struct cfdata *, void *); 74 75 struct plumisa_resource { 76 int pr_irq; 77 bus_space_tag_t pr_iot; 78 int pr_enabled; 79 }; 80 81 struct plumiobus_softc { 82 struct device sc_dev; 83 plum_chipset_tag_t sc_pc; 84 bus_space_tag_t sc_regt; 85 bus_space_handle_t sc_regh; 86 bus_space_tag_t sc_iot; 87 bus_space_handle_t sc_ioh; 88 struct plumisa_resource sc_isa[PLUM_IOBUS_IO5CSMAX]; 89 }; 90 91 CFATTACH_DECL(plumiobus, sizeof(struct plumiobus_softc), 92 plumiobus_match, plumiobus_attach, NULL, NULL); 93 94 bus_space_tag_t __plumiobus_subregion(bus_space_tag_t, bus_addr_t, 95 bus_size_t); 96 #ifdef PLUMIOBUSDEBUG 97 void plumiobus_dump(struct plumiobus_softc *); 98 #endif 99 100 int 101 plumiobus_match(struct device *parent, struct cfdata *cf, void *aux) 102 { 103 104 return (1); 105 } 106 107 void 108 plumiobus_attach(struct device *parent, struct device *self, void *aux) 109 { 110 struct plum_attach_args *pa = aux; 111 struct plumiobus_softc *sc = (void*)self; 112 struct plumisa_resource *pr; 113 114 sc->sc_pc = pa->pa_pc; 115 sc->sc_regt = pa->pa_regt; 116 sc->sc_iot = pa->pa_iot; 117 118 if (bus_space_map(sc->sc_regt, PLUM_IOBUS_REGBASE, 119 PLUM_IOBUS_REGSIZE, 0, &sc->sc_regh)) { 120 printf(": register map failed.\n"); 121 return; 122 } 123 printf("\n"); 124 plum_power_establish(sc->sc_pc, PLUM_PWR_IO5); 125 126 /* Address space <-> IRQ mapping */ 127 pr = &sc->sc_isa[IO5CS0]; 128 pr->pr_irq = PLUM_INT_EXT5IO0; 129 pr->pr_iot = __plumiobus_subregion( 130 sc->sc_iot, 131 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS0BASE, 132 PLUM_IOBUS_IO5SIZE); 133 134 pr = &sc->sc_isa[IO5CS1]; 135 pr->pr_irq = PLUM_INT_EXT5IO1; 136 pr->pr_iot = __plumiobus_subregion( 137 sc->sc_iot, 138 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS1BASE, 139 PLUM_IOBUS_IO5SIZE); 140 141 pr = &sc->sc_isa[IO5CS2]; 142 pr->pr_irq = PLUM_INT_EXT5IO2; 143 pr->pr_iot = __plumiobus_subregion( 144 sc->sc_iot, 145 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS2BASE, 146 PLUM_IOBUS_IO5SIZE); 147 148 pr = &sc->sc_isa[IO5CS3]; 149 pr->pr_irq = PLUM_INT_EXT5IO3; 150 pr->pr_iot = __plumiobus_subregion( 151 sc->sc_iot, 152 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS3BASE, 153 PLUM_IOBUS_IO5SIZE); 154 155 pr = &sc->sc_isa[IO5CS4]; 156 pr->pr_irq = PLUM_INT_EXT3IO0; /* XXX */ 157 pr->pr_iot = __plumiobus_subregion( 158 sc->sc_iot, 159 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS4BASE, 160 PLUM_IOBUS_IO5SIZE); 161 162 163 pr = &sc->sc_isa[IO5NCS]; 164 pr->pr_irq = PLUM_INT_EXT3IO1; 165 pr->pr_iot = __plumiobus_subregion( 166 sc->sc_iot, 167 PLUM_IOBUS_IOBASE + PLUM_IOBUS_IO5CS5BASE, 168 PLUM_IOBUS_IO5SIZE); 169 170 #ifdef PLUMIOBUSDEBUG 171 plumiobus_dump(sc); 172 #endif 173 174 config_search(plumiobus_search, self, plumiobus_print); 175 } 176 177 /* XXX something kludge */ 178 bus_space_tag_t 179 __plumiobus_subregion(bus_space_tag_t t, bus_addr_t ofs, bus_size_t size) 180 { 181 struct hpcmips_bus_space *hbs; 182 183 if (!(hbs = malloc(sizeof(struct hpcmips_bus_space), 184 M_DEVBUF, M_NOWAIT))) { 185 panic ("__plumiobus_subregion: no memory."); 186 } 187 *hbs = *t; 188 hbs->t_base += ofs; 189 hbs->t_size = size; 190 191 return (hbs); 192 } 193 194 int 195 plumiobus_search(struct device *parent, struct cfdata *cf, void *aux) 196 { 197 struct plumiobus_softc *sc = (void*)parent; 198 struct plumiobus_attach_args pba; 199 int slot; 200 201 /* Disallow wildcarded IO5CS slot */ 202 if (cf->cf_loc[PLUMIOBUSIFCF_SLOT] == PLUMIOBUSIFCF_SLOT_DEFAULT) { 203 printf("plumiobus_search: wildcarded slot, skipping\n"); 204 return (0); 205 } 206 slot = pba.pba_slot = cf->cf_loc[PLUMIOBUSIFCF_SLOT]; 207 208 pba.pba_pc = sc->sc_pc; 209 pba.pba_iot = sc->sc_isa[slot].pr_iot; 210 pba.pba_irq = sc->sc_isa[slot].pr_irq; 211 pba.pba_busname = "plumisab"; 212 213 if (!(sc->sc_isa[slot].pr_enabled) && /* not attached slot */ 214 config_match(parent, cf, &pba)) { 215 config_attach(parent, cf, &pba, plumiobus_print); 216 sc->sc_isa[slot].pr_enabled = 1; 217 } 218 219 return (0); 220 } 221 222 int 223 plumiobus_print(void *aux, const char *pnp) 224 { 225 226 return (pnp ? QUIET : UNCONF); 227 } 228 229 #ifdef PLUMIOBUSDEBUG 230 void 231 plumiobus_dump(struct plumiobus_softc *sc) 232 { 233 bus_space_tag_t regt = sc->sc_regt; 234 bus_space_handle_t regh = sc->sc_regh; 235 plumreg_t reg; 236 int i, wait; 237 238 reg = plum_conf_read(regt, regh, PLUM_IOBUS_IOXBSZ_REG); 239 printf("8bit port:"); 240 for (i = 0; i < 6; i++) { 241 if (reg & (1 << i)) { 242 printf(" IO5CS%d", i); 243 } 244 } 245 printf("\n"); 246 247 reg = PLUM_IOBUS_IOXCCNT_MASK & 248 plum_conf_read(regt, regh, PLUM_IOBUS_IOXCCNT_REG); 249 printf(" # of wait to become from the access begining: %d clock\n", 250 reg + 1); 251 reg = plum_conf_read(regt, regh, PLUM_IOBUS_IOXACNT_REG); 252 printf(" # of wait in access clock: "); 253 for (i = 0; i < 5; i++) { 254 wait = (reg >> (i * PLUM_IOBUS_IOXACNT_SHIFT)) 255 & PLUM_IOBUS_IOXACNT_MASK; 256 printf("[CS%d:%d] ", i, wait + 1); 257 } 258 printf("\n"); 259 260 reg = PLUM_IOBUS_IOXSCNT_MASK & 261 plum_conf_read(regt, regh, PLUM_IOBUS_IOXSCNT_REG); 262 printf(" # of wait during access by I/O bus : %d clock\n", reg + 1); 263 264 reg = plum_conf_read(regt, regh, PLUM_IOBUS_IDEMODE_REG); 265 if (reg & PLUM_IOBUS_IDEMODE) { 266 printf("IO5CS3,4 IDE mode\n"); 267 } 268 } 269 #endif /* PLUMIOBUSDEBUG */ 270
Indexes created Thu Oct 02 01:09:59 GMT 2025